SetupWizardRecyclerLayoutTest.java revision 83862bb59558fc044de9aa0d6e9407be53af8b81 
1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.setupwizardlib.test;
18
19import static org.junit.Assert.assertEquals;
20import static org.junit.Assert.assertNotNull;
21import static org.junit.Assert.assertSame;
22import static org.junit.Assert.assertTrue;
23import static org.junit.Assert.fail;
24
25import android.content.Context;
26import android.graphics.drawable.Drawable;
27import android.graphics.drawable.InsetDrawable;
28import android.os.Build;
29import android.support.test.InstrumentationRegistry;
30import android.support.test.filters.SmallTest;
31import android.support.test.runner.AndroidJUnit4;
32import android.support.v7.widget.RecyclerView;
33import android.support.v7.widget.RecyclerView.Adapter;
34import android.support.v7.widget.RecyclerView.ViewHolder;
35import android.view.ContextThemeWrapper;
36import android.view.LayoutInflater;
37import android.view.View;
38import android.view.View.MeasureSpec;
39import android.view.ViewGroup;
40
41import com.android.setupwizardlib.SetupWizardRecyclerLayout;
42
43import org.junit.Before;
44import org.junit.Test;
45import org.junit.runner.RunWith;
46
47@RunWith(AndroidJUnit4.class)
48@SmallTest
49public class SetupWizardRecyclerLayoutTest {
50
51    private Context mContext;
52
53    @Before
54    public void setUp() throws Exception {
55        mContext = new ContextThemeWrapper(InstrumentationRegistry.getContext(),
56                R.style.SuwThemeMaterial_Light);
57    }
58
59    @Test
60    public void testDefaultTemplate() {
61        SetupWizardRecyclerLayout layout = new SetupWizardRecyclerLayout(mContext);
62        assertRecyclerTemplateInflated(layout);
63    }
64
65    @Test
66    public void testInflateFromXml() {
67        LayoutInflater inflater = LayoutInflater.from(mContext);
68        SetupWizardRecyclerLayout layout = (SetupWizardRecyclerLayout)
69                inflater.inflate(R.layout.test_recycler_layout, null);
70        assertRecyclerTemplateInflated(layout);
71    }
72
73    @Test
74    public void testGetRecyclerView() {
75        SetupWizardRecyclerLayout layout = new SetupWizardRecyclerLayout(mContext);
76        assertRecyclerTemplateInflated(layout);
77        assertNotNull("getRecyclerView should not be null", layout.getRecyclerView());
78    }
79
80    @Test
81    public void testAdapter() {
82        SetupWizardRecyclerLayout layout = new SetupWizardRecyclerLayout(mContext);
83        assertRecyclerTemplateInflated(layout);
84
85        final Adapter adapter = createTestAdapter(1);
86        layout.setAdapter(adapter);
87
88        final Adapter gotAdapter = layout.getAdapter();
89        // Note: The wrapped adapter should be returned, not the HeaderAdapter.
90        assertSame("Adapter got from SetupWizardLayout should be same as set",
91                adapter, gotAdapter);
92    }
93
94    @Test
95    public void testLayout() {
96        SetupWizardRecyclerLayout layout = new SetupWizardRecyclerLayout(mContext);
97        assertRecyclerTemplateInflated(layout);
98
99        layout.setAdapter(createTestAdapter(3));
100
101        layout.measure(
102                MeasureSpec.makeMeasureSpec(500, MeasureSpec.EXACTLY),
103                MeasureSpec.makeMeasureSpec(500, MeasureSpec.EXACTLY));
104        layout.layout(0, 0, 500, 500);
105        // Test that the layout code doesn't crash.
106    }
107
108    @Test
109    public void testDividerInset() {
110        SetupWizardRecyclerLayout layout = new SetupWizardRecyclerLayout(mContext);
111        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
112            layout.setLayoutDirection(View.LAYOUT_DIRECTION_LTR);
113        }
114        assertRecyclerTemplateInflated(layout);
115
116        layout.setDividerInset(10);
117        assertEquals("Divider inset should be 10", 10, layout.getDividerInset());
118
119        final Drawable divider = layout.getDivider();
120        assertTrue("Divider should be instance of InsetDrawable", divider instanceof InsetDrawable);
121    }
122
123    @Test
124    public void testTemplateWithNoRecyclerView() {
125        try {
126            new SetupWizardRecyclerLayout(
127                    mContext,
128                    R.layout.suw_glif_template,
129                    R.id.suw_recycler_view);
130            fail("Creating SetupWizardRecyclerLayout with no recycler view should throw exception");
131        } catch (Exception e) {
132            // pass
133        }
134    }
135
136    private void assertRecyclerTemplateInflated(SetupWizardRecyclerLayout layout) {
137        View recyclerView = layout.findViewById(R.id.suw_recycler_view);
138        assertTrue("@id/suw_recycler_view should be a RecyclerView",
139                recyclerView instanceof RecyclerView);
140
141        assertNotNull("Header text view should not be null",
142                layout.findManagedViewById(R.id.suw_layout_title));
143        assertNotNull("Decoration view should not be null",
144                layout.findManagedViewById(R.id.suw_layout_decor));
145    }
146
147    private Adapter createTestAdapter(final int itemCount) {
148        return new Adapter() {
149            @Override
150            public ViewHolder onCreateViewHolder(ViewGroup parent, int position) {
151                return new ViewHolder(new View(parent.getContext())) {};
152            }
153
154            @Override
155            public void onBindViewHolder(ViewHolder viewHolder, int position) {
156            }
157
158            @Override
159            public int getItemCount() {
160                return itemCount;
161            }
162        };
163    }
164}
165